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drm/radeon/kms/pm: add support for no display power states

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The lowest power states often cause display problems, so only enable
them when all displays are off.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2010-05-03 01:13:14 -04:00
committed by Dave Airlie
parent ca2af92311
commit d7311171c4
8 changed files with 94 additions and 40 deletions
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7
drivers/gpu/drm/radeon/radeon.h
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@@ -658,6 +658,9 @@ struct radeon_voltage {
u32 voltage;
};
/* clock mode flags */
#define RADEON_PM_MODE_NO_DISPLAY (1 << 0)
struct radeon_pm_clock_info {
/* memory clock */
u32 mclk;
@@ -665,12 +668,12 @@ struct radeon_pm_clock_info {
u32 sclk;
/* voltage info */
struct radeon_voltage voltage;
/* standardized clock flags - not sure we'll need these */
/* standardized clock flags */
u32 flags;
};
/* state flags */
#define RADEON_PM_SINGLE_DISPLAY_ONLY (1 << 0)
#define RADEON_PM_STATE_SINGLE_DISPLAY_ONLY (1 << 0)
struct radeon_power_state {
enum radeon_pm_state_type type;